Integrated Side Plate and Busbar Holder for Battery Module Assembly
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Solution Overview
Problem
The assembly process of battery modules is complicated due to the misalignment of side plates and busbar holders, which can lead to inefficiencies in space usage and increased complexity.
Innovation Solution
A battery module design where the busbar holder and side plate are integrated on the same side as the cell terminal, allowing for a simplified assembly process and improved space efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the side plate and busbar holder are disposed in different positions, then the protective function and electrical connection function can be achieved, but the assembly process becomes complicated
Solution Approach 1:
The side plate and busbar holder are merged into a single integrated component that simultaneously provides mechanical protection and electrical connection functions. This integration eliminates the need for separate positioning and assembly of two distinct parts, thereby simplifying the assembly process while maintaining both protective and electrical functions.
Solution Approach 2:
The integrated side plate-busbar holder structure performs multiple functions: it protects the battery cell side, provides structural support, and establishes electrical connections through the busbar. By combining these functions into one component, the design reduces assembly complexity while ensuring functional completeness.
2Reliability
If the side plate and busbar holder are disposed in different positions, then the respective functions are fulfilled, but the space efficiency is reduced
Solution Approach 1:
By merging the side plate and busbar holder into one integrated component disposed at the same location, the design maximizes space efficiency. The combined structure eliminates the need for additional space that would be required for separate positioning of two components, while still fulfilling both protective and electrical connection functions.
3Device complexity
If the side plate and busbar holder are integrated on the same side, then the assembly process is simplified and space efficiency is improved, but the alignment precision requirements increase
Solution Approach 1:
The integration of side plate and busbar holder into a single component inherently ensures alignment, as there is no relative positioning required between separate parts. This eliminates alignment precision issues while simplifying the assembly process and improving space efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design simplifies the assembly process by integrating protective and electrical components, enhancing space efficiency by ensuring precise alignment and reducing assembly complexity.
Implementation Method 1
The busbar and the cell terminal may be melt-joined by welding.
Implementation Method 2
The busbar and the cell terminal may be laser-welded through the first opening portion and the second opening portion.
Data Source
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AI summary
The disclosure relates to a battery module, including a battery cell, a side plate facing a side of the battery cell and provided with a first opening portion, a cell terminal protruding from the battery cell toward the side plate, a busbar holder coupled to the side plate, disposed between the side plate and the battery cell, and provided with a second opening portion communicating with the first opening portion, and a busbar that is supported by the busbar holder, covers the second opening portion, and connected to the cell terminal.